Brake-shoe.



Patented Dec. 15, 1914.

J. J. TATUM.

BRAKE SHOE.

APPLICATION FILED JULY 11. 1913.

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JOHN J. TATUM. OF BA BBAKL Application filed July 11.

To all 'u: 710m it may concern:

Be it known that 1, JOHN J. TATUM, a citizen of the United States,residing at Baltimore, in the State of Maryland, have invented certainnew and useful Improve ments in Brake-Shoes, of which the following is aspecification.

The object of my invention is to provide the stiffening or girdersupport extending lengthwise of the shoc,.whereby the wearing life ofthe shoe, as well as the strength of the shoe is increased.

My invention consists broadly in a brake shoe composed of cast metalformed into a solid homogeneous mass with a reticulated strengtheningmember embedded therein and extending lengthwise of the shoe.

In the drawings :-Figure 1 is a perspective view of a brake shoeembodying my invention. Fig. 2 is a perspective view of thestrengthening member detached. Fig. 3 is a similar view of a slightmodification of the strengthening member showing another em bodiment.Fig. 4 is a cross sectional view of another embodiment of strengtheningmember. Fig. 5 is a cross sectional view of a sti 1 further embodimentof the strengthening member. Fig. 6 is a cross sectional view of stillanother embodiment of the strengthening member.

1 represents a brake shoe composed of cast metal formed into a solidhomogeneous mass and adapted for use on the present type of brake beamequipment.

2 represents a reticulated corrugated member embedded in the shoe whenit is cast, the metal of the shoe flowing through the openings in thereticulated member, thus firmly binding said member in said shoesecurely and intimately against relative movement with the shoe. Thereticulated member may be constructed of wire mesh or expands metal andit is pressed into V-shaped folds 3 and then pressed to give it anarcuate shape coinciding with the radius of the fin ished shoe, saidstrengthening member extending throughout the entire length of the shoefrom end to end and giving a girder like support to the shoe throughoutits area.

I may form the strengthening member with side marginal flanges l asshown in Fig. 3 and may have but one fold as shown in Figs. e and 5.Again, I may form said LTIMORE, MARYLAND.

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Lett r P n Patented Dec. 15, 1914.

1913. Serial No. 778,624.

strengthening member with a central fiat port on 0 with said marginalfolds as shown in Fig. 6.

lvhile a strengthening member, embodying my invention, materiallystrengthens the shoe and adds to the life of the shoe, at the same time,it does not interfere with the friction produced by the cast ironforming the body of the shoe and will not prevent the retarding of thecar wheels when the brakes are applied but will give a more desirableretarding effect to the brake shoe and will not out grooves in thetreads of the wheels.

What I claim is 1. As a new article of manufacture, a brake shoecomposed of cast metal, formed into a solid homogeneous mass, with awire netting formed into V-shaped folds and extending lengthwise ofthe-shoe.

2. As a new article of manufacture, a brake shoe composed of cast metalformed into a solid homogeneous mass, and a reticulated member formed ofV-shaped folds extending lengthwise of the shoe and serving as a girdersupport for the shoe.

3. As a new article f manufacture, a. brake shoe composed of cast metal,formed into a solid homogeneous mass, and a reticulated member made witha multiple of V- shaped folds formed throughout their length on the arcof the shoe and embedded in said mass.

4. As a new article of manufacture, a. brake shoe composed of castmetal, formed into homogeneous mass, with a reticulated member embeddedtherein; said member comprising a plurality of V shaped folds formed onthe are of the shoe and extending in the direction of the length of theshoe, and giving a girder-like support for the shoe throughout its area.

5. A combined wearing and strengthening insert for brake .hoescomprising a corrugated member, the corrugations of which extend in thedirection of the length of the shoe.

6. As a new article of manufacture, a strengthening member, adapted tobe embedded in a cast brake shoe, comprising a reticulated body formedwith \l-shaped folds extending in the direction of its length.

7. As a new strengthening member shoes,

for brake article of manufacture, a

adapted to be embedded in the shoe when marginal. flanges extending inthe directinn 10 cast, comprising a reticulated arcuate body of itslength. formed with V-shapecl folds ext-ending in the r The foregoingspecification signed at Baldirecgon of its length I f timoreflfiii this20 day of June, 1918. 7

5 8. s a new article 0' manu acture, a m" strengthening member for brakeshoes, 7 JOHN TAiUM' adapted to be embedded in the shoe when In'presence of two Witnesses: cast, comprising a reticulated arcuate bodySIMON' GREENEBAUM,

formed with V-shaped folds and fiat, side, ELLA TATUM.

copies of this patent may be obtained for five cents each, bfyaddressing the Commissioner of Patents, Washington, D. G.

